Notes: This well developed and old specimen lived on the (calcareous) rock pieces and mosses on the top of a fence.
At the begining several possibilities appeared for the classification, namely:
C. bachmanianum, C. polycarpon and C. tenax.
The data obtained from microscopy fits very well with the data of Collema polycarpon given in CNALH:
Asci cylindrical to clavate with 8 spores;
Spores hialine often fusiform with more or less acute ends in general 3-septate, though there are some 1- or 2-septate, with the following average values: Me = 18.4 × 7 µm ; Qe = 2.6 (N=38).
According to CNALH, C. bachmanianum has bigger and more septate spores (see MO76956 for an example) and the spores of C. tenax similar in dimensions are submuriform with 1-2 longitudinal septa (see MO76181 and MO66329 for examples).
|User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote.|
|I’d Call It That||3.0||0.00||0|
sum(score * weight) /
(total weight + 1)
Created: 2011-10-18 20:17:55 CEST (+0200)
Last modified: 2011-10-18 20:18:36 CEST (+0200)
Viewed: 23 times, last viewed: 2017-06-10 07:49:18 CEST (+0200)